#4231B4#4231B4

#4231B4 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.5% C 0.195 H 280.0°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#4231B4
RGB	rgb(66, 49, 180)
HSL	hsl(248, 57%, 45%)
HSV	hsv(248, 73%, 71%)
CMYK	cmyk(63.3%, 72.8%, 0%, 29.4%)
CIE-LAB	lab(30.99, 45.31, -66.66)
CIE-LCH	lch(30.99, 80.61, 304.20°)
OKLab	oklab(42.48% 0.0338 -0.1923)
OKLCH	oklch(42.48% 0.195 280)
XYZ	xyz(11.5807, 6.6493, 43.8443)
Luminance	0.0665 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4231B4 #A3B431

analogous

#3162B4 #4231B4 #8331B4

triadic

#4231B4 #B44231 #31B442

tetradic

#4231B4 #B43162 #A3B431 #31B483

square

#4231B4 #B43162 #A3B431 #31B483

split-complementary

#4231B4 #B48331 #62B431

monochromatic

#1F1754 #302484 #4231B4 #6352D0 #8E82DD

Accessibility & contrast

On white

9.01

#4231B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#4231B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4231B4

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4231B4	#FFFFFF	#000000	##FFFFFF
##4231B4	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB8

Deuteranopia (green-blind)

#0044B2

Tritanopia (blue-blind)

#00556F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #4231b4;
/* rgb */ color: rgb(66, 49, 180);
/* oklch */ color: oklch(42.5% 0.195 280.0);

Tailwind

colors: {
  custom: {
    50: '#856bcc',
    500: '#4231b4',
    950: '#000000',
  },
}

SCSS

$custom: #4231b4;
$custom-light: #856bcc;
$custom-dark: #000000;

JSON

{
  "hex": "#4231b4",
  "rgb": {
    "r": 66,
    "g": 49,
    "b": 180
  },
  "hsl": {
    "h": 247.786,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42479,
    "c": 0.19528,
    "h": 280
  },
  "luminance": 0.0665
}

Semantic roles & 50–950 ramp

primary

#4231B4

secondary

#BCC67B

accent

#E047CD

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4231B4

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →